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4ebc334298
* Normalize SI unit prefixes in distribution card proportions * Extract SI prefix normalization to shared utility with tests Moves normalizeValueBySIPrefix to src/common/number/ so it can be reused. Replaces the inline method in the distribution card and the switch statement in getPowerFromState (energy.ts).
55 lines
1.8 KiB
TypeScript
55 lines
1.8 KiB
TypeScript
import { assert, describe, it } from "vitest";
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import { normalizeValueBySIPrefix } from "../../../src/common/number/normalize-by-si-prefix";
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describe("normalizeValueBySIPrefix", () => {
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it("Applies kilo prefix (k)", () => {
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assert.equal(normalizeValueBySIPrefix(11, "kW"), 11000);
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assert.equal(normalizeValueBySIPrefix(2.5, "kWh"), 2500);
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});
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it("Applies mega prefix (M)", () => {
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assert.equal(normalizeValueBySIPrefix(3, "MW"), 3_000_000);
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});
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it("Applies giga prefix (G)", () => {
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assert.equal(normalizeValueBySIPrefix(1, "GW"), 1_000_000_000);
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});
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it("Applies tera prefix (T)", () => {
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assert.equal(normalizeValueBySIPrefix(2, "TW"), 2_000_000_000_000);
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});
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it("Applies milli prefix (m)", () => {
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assert.equal(normalizeValueBySIPrefix(500, "mW"), 0.5);
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});
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it("Applies micro prefix (µ micro sign U+00B5)", () => {
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assert.equal(normalizeValueBySIPrefix(1000, "\u00B5W"), 0.001);
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});
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it("Applies micro prefix (μ greek mu U+03BC)", () => {
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assert.equal(normalizeValueBySIPrefix(1000, "\u03BCW"), 0.001);
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});
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it("Returns value unchanged for single-char units", () => {
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assert.equal(normalizeValueBySIPrefix(100, "W"), 100);
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assert.equal(normalizeValueBySIPrefix(5, "m"), 5);
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assert.equal(normalizeValueBySIPrefix(22, "K"), 22);
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});
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it("Returns value unchanged for undefined unit", () => {
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assert.equal(normalizeValueBySIPrefix(42, undefined), 42);
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});
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it("Returns value unchanged for unrecognized prefixes", () => {
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assert.equal(normalizeValueBySIPrefix(20, "°C"), 20);
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assert.equal(normalizeValueBySIPrefix(50, "dB"), 50);
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assert.equal(normalizeValueBySIPrefix(1013, "hPa"), 1013);
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});
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it("Returns value unchanged for empty string", () => {
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assert.equal(normalizeValueBySIPrefix(10, ""), 10);
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});
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});
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